#include <stdio.h>

void fa(int a,int b){
	printf("&a = %p,&b = %p \n",&a,&b);
	printf("a = %d,b=%d \n",a,b);
	a = 100;
}

int main(){
	int x= 1,y = 2;
	printf("&x= %p,&y=%p \n",&x,&y);
	fa(x,y);//实参
	printf("x = %d\n",x);
	void fb(int,float);
	fb(x,4.0f);//如果没有显式声明，系统会升型
}


void fb(int a,float /*double*/ b){
	printf("%d,%f \n",a,b);
}


